package com.yhc.mydemo.mapper;

import com.yhc.mydemo.entity.Student;
import org.apache.ibatis.annotations.Mapper;

/**
 * @Author Corday 天涯
 * @Date 2022/4/23 23:25
 * one:实现一对一关联查询
 */
@Mapper
public interface StudentMapper {
  Student selectStudentById(int sid);
}
